EP1209039A3 - Shock absorbing member and bumper comprising the same - Google Patents

Shock absorbing member and bumper comprising the same Download PDF

Info

Publication number
EP1209039A3
EP1209039A3 EP01127650A EP01127650A EP1209039A3 EP 1209039 A3 EP1209039 A3 EP 1209039A3 EP 01127650 A EP01127650 A EP 01127650A EP 01127650 A EP01127650 A EP 01127650A EP 1209039 A3 EP1209039 A3 EP 1209039A3
Authority
EP
European Patent Office
Prior art keywords
bumper
axial load
crash box
same
shock absorbing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01127650A
Other languages
German (de)
French (fr)
Other versions
EP1209039A2 (en
Inventor
Terutsugu Gotanda
Shinichi Haneda
Kazuo Mori
Kiyohito Morimoto
Kazumoto Kajiwara
Yuzo Konishi
Seiji Sakai
Kazunobu Nuno
Kazunari Azuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Keikinzoku Co Ltd
Toyota Motor Corp
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Aisin Keikinzoku Co Ltd
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd, Aisin Keikinzoku Co Ltd, Toyota Motor Corp filed Critical Aisin Seiki Co Ltd
Publication of EP1209039A2 publication Critical patent/EP1209039A2/en
Publication of EP1209039A3 publication Critical patent/EP1209039A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Abstract

A bumper includes a pair of hollow crash boxes (17, 34), each of which is located at one end of a bumper reinforce (16). When receiving axial load, each crash box (17, 34) is plastically deformed to absorb the axial load. An initial buckling portion (23, 33) is previously formed in each crash box (17, 34). Plastic deformation of each crash box (17, 34) due to axial load starts at the associated initial buckling portion (23, 33). This reduces axial load that is needed to start plastic deformation of each crash box (17, 34).
EP01127650A 2000-11-21 2001-11-20 Shock absorbing member and bumper comprising the same Withdrawn EP1209039A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000354821 2000-11-21
JP2000354821A JP2002155980A (en) 2000-11-21 2000-11-21 Impact absorbing member and bumper

Publications (2)

Publication Number Publication Date
EP1209039A2 EP1209039A2 (en) 2002-05-29
EP1209039A3 true EP1209039A3 (en) 2004-10-20

Family

ID=18827338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127650A Withdrawn EP1209039A3 (en) 2000-11-21 2001-11-20 Shock absorbing member and bumper comprising the same

Country Status (3)

Country Link
US (1) US20020060463A1 (en)
EP (1) EP1209039A3 (en)
JP (1) JP2002155980A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006062561A (en) 2004-08-27 2006-03-09 Aisin Seiki Co Ltd Impact absorbing structure of vehicle
JP4723942B2 (en) * 2004-09-28 2011-07-13 アイシン精機株式会社 Vehicle shock absorber and vehicle shock absorption structure
DE102005034469A1 (en) * 2005-07-23 2007-02-01 Daimlerchrysler Ag Front end structure for a commercial vehicle
EP1914144B1 (en) * 2006-10-19 2009-08-12 Voith Turbo Scharfenberg GmbH & Co. KG Energy absorbing element for multiple unit vehicles
JP2008213625A (en) * 2007-03-02 2008-09-18 Sumitomo Light Metal Ind Ltd Method for manufacturing energy absorbing member for automobile, and energy absorbing member for automobile manufactured by the manufacturing method
JP4760782B2 (en) * 2007-06-19 2011-08-31 マツダ株式会社 Energy absorbing member
JP5168477B2 (en) * 2008-03-26 2013-03-21 スズキ株式会社 Vehicle crash box and body front structure
US7866716B2 (en) 2008-04-08 2011-01-11 Flex-N-Gate Corporation Energy absorber for vehicle
JP5246139B2 (en) * 2009-02-26 2013-07-24 トヨタ自動車株式会社 Vehicle front structure
US9643651B2 (en) 2015-08-28 2017-05-09 Honda Motor Co., Ltd. Casting, hollow interconnecting member for connecting vehicular frame members, and vehicular frame assembly including hollow interconnecting member
US10065587B2 (en) 2015-11-23 2018-09-04 Flex|N|Gate Corporation Multi-layer energy absorber
JP2023131695A (en) * 2022-03-09 2023-09-22 株式会社Uacj bumper assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547463A (en) * 1968-07-01 1970-12-15 Budd Co Collapsible automobile body structure and method of making same
US3912295A (en) * 1974-03-04 1975-10-14 Budd Co Crash energy-attenuating means for a vehicle frame construction
JPH08216917A (en) * 1995-02-15 1996-08-27 Nippon Light Metal Co Ltd Structural member excellent in shock absorbing performance
WO1998039106A2 (en) * 1997-03-04 1998-09-11 Magna Ihv Gesellschaft Für Innenhochdruckverfahren Mbh Deformation element, method for its production and its use

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2650527B2 (en) 1991-09-10 1997-09-03 日産自動車株式会社 Car body strength member structure
JPH07145842A (en) * 1993-11-24 1995-06-06 Sumitomo Light Metal Ind Ltd Energy absorbing member made of aluminum alloy for automobile
JPH07145843A (en) 1993-11-24 1995-06-06 Sumitomo Light Metal Ind Ltd Energy absorbing member made of aluminum alloy for automobile
JP3480601B2 (en) * 1994-08-25 2003-12-22 国立環境研究所長 Car bumper mounting structure
JP3554170B2 (en) 1998-01-22 2004-08-18 本田技研工業株式会社 Car body frame structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547463A (en) * 1968-07-01 1970-12-15 Budd Co Collapsible automobile body structure and method of making same
US3912295A (en) * 1974-03-04 1975-10-14 Budd Co Crash energy-attenuating means for a vehicle frame construction
JPH08216917A (en) * 1995-02-15 1996-08-27 Nippon Light Metal Co Ltd Structural member excellent in shock absorbing performance
WO1998039106A2 (en) * 1997-03-04 1998-09-11 Magna Ihv Gesellschaft Für Innenhochdruckverfahren Mbh Deformation element, method for its production and its use

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12 26 December 1996 (1996-12-26) *

Also Published As

Publication number Publication date
JP2002155980A (en) 2002-05-31
EP1209039A2 (en) 2002-05-29
US20020060463A1 (en) 2002-05-23

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